Cerium(III) Chloride-Mediated Reactions of Sulfonamide Dianions
作者:David C. Johnson、Theodore S. Widlanski
DOI:10.1021/jo034001w
日期:2003.6.1
5'-aldehyde, 3'-ketouridine, and 3'-ketothymidine. The reaction was chemoselective for aldehydes in the presence of nitriles. Acetoxy groups are labile and thus not suitable protecting groups for alcohols under these conditions. N-Benzyl-alpha, N-dilithio methanesulfonamide was found to be of sufficient basicity to cause enolate formation with sensitive substrates, such as 1-phenylacetone. However, the